Physical layer impairments based optical routing

Abstract

In optical networks, physical layer impairments (PLIs) incurred by non-ideal optical transmission media, accumulates along the optical path. The overall effect of PLIs determines the feasibility of the light-paths. It is important to understand the process that provide PLI information to the central manager and use this information efficiently to compute feasible routes and wavelengths. Based on the PLI impairments like fiber attenuation, chromatic dispersion ,cross talk, amplifier spontaneous noise and polarization mode dispersion, which reflects the Quality of service, factors (Q-Factor); In this project we worked about both linear and non linear physical layer impairments and calculated parameters like power loss , channel capacity and Quality factor of all possible paths. From that we proposed centralized PLI based routing algorithm is proposed for the selection of data-paths.